Showing posts with label dioecious. Show all posts
Showing posts with label dioecious. Show all posts

Friday, December 18, 2015

Skimmia japonica

Skimmia japonica
Source: OSU Department of Horticulture
Botanical Name: Skimmia japonica
Common Name: Japanese Skimmia
Family: Rutaceae
Type of Plant: Evergreen shrub
Habit: Dense, rounded to haystack-shaped, evergreen shrub of rather gentle proportions.
Growth Rate: Slow
10-Year Height: < 6'
Mature Height: 2' - 3'
Leaves: Alternate, simple, evergreen, crowded at end of branches and appearing whorled, elliptic-oblong to oblong-obovate, bright green upon emerging, finally dark green above, entire, glabrous, peppery citrus smell when bruised. Petiole short, glabrous, reddish purple.
Flowers: Dioecious. Glossy maroon-red in bud, creamy white when open, weakly fragrant, borne in 2-3" long upright panicles. March-April. Flowers on male plants larger and more fragrant.
Fruit: Only on female plant, bright red, globose drupe that ripens in October and persists into the following spring. Fruit is borne at end of shoots in panicles. About 1 male to 6 males is necessary for good fruit set.
Buds/New Growth: Imbricate, covered in with red scales, glabrous.
Stem/Bark: Stem stout, green with an overcast of reddish purple, glabrous, spicy fragrant when bruised. Pith: ample, excavated, green.
Culture: Part shade to shade.
Pruning: 
Pests/Diseases: Skimmia mites.
Landscape Uses: Shade garden.
Additional Information: 

Thursday, November 19, 2015

Acer glabrum

Acer glabrum
Source: www.nwplants.com
Botanical Name: Acer glabrum
Common Name: Douglas Maple; Rocky Mountain Maple
Family: Aceraceae
Type of Plant: Broadleaf deciduous tree
Habit: Often multi-stemmed, upright
Growth Rate: Slow
10-Year Height: < 6
Mature Height: 30 feet
Leaves: Opposite, simple, 3-5 lobes (occasionally divided into 3 leaflets, more common in moist areas), coarsely double toothed, green above, blue-green below. Petiole long, slender, often red. Fall color yellow.
Flowers: Dioecious. Yellowish green, with 5 petals. April-May.
Fruit: Wings nearly parallel.
Buds/New Growth: 
Stem/Bark: 
Culture: Sun to part shade. Found along streams and other moist sites.
Pruning: 
Pests/Diseases: 
Landscape Uses: Native planting. Erosion control.
Additional Information: